ISO 804:1976
Withdrawn
Aluminium oxide primarily used for the production of aluminium — Preparation of solution for analysis — Method by alkaline fusion
Hardcopy , PDF
English, French
09-01-1976
07-16-2021
The procedure for the preparation of a principal solution for chemical analysis requires at first an alkaline fusion of the test portion, either with a mixture of sodium carbonate and boric acid or with a mixture of sodium carbonate and sodium tetraborate. Subsequent dissolution of the molten mass in an excess of nitric acid and adjustment of an appropriate aliquot portion to pH 2. Replaces ISO Recommendation R804/1968.
| Committee |
ISO/TC 226
|
| DevelopmentNote |
Also numbered as BS 4140-4(1986) (07/2005)
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NBN T 03 403 : 1983 | Identical |
| BS 4140-8:1986 | Methods of test for aluminium oxide Determination of absolute density using a pyknometer |
| BS 4140-9:1986 | Methods of test for aluminium oxide Measurement of the angle of repose |
| BS 4140-13:1986 | Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure |
| BS 4140-6:1980 | Methods of test for aluminium oxide Determination of titanium content |
| ANSI S12.62 : 2012(R2017) | ACOUSTICS - ATTENUATION OF SOUND DURING PROPAGATION OUTDOORS - PART 2: GENERAL METHOD OF CALCULATION |
| I.S. EN ISO 12001:2009 | ACOUSTICS - NOISE EMITTED BY MACHINERY AND EQUIPMENT - RULES FOR THE DRAFTING AND PRESENTATION OF A NOISE TEST CODE |
| BS 4140-1:1986 | Methods of test for aluminium oxide Preparation and storage of test samples |
| ANSI S12.62 : 2012 | ACOUSTICS - ATTENUATION OF SOUND DURING PROPAGATION OUTDOORS - PART 2: GENERAL METHOD OF CALCULATION |
| BS 4140-22:1980 | Methods of test for aluminium oxide Determination of manganese content |
| BS 4140-11:1986 | Methods of test for aluminium oxide Determination of sodium content |
| BS 4140-10:1986 | Methods of test for aluminium oxide Determination of untamped density |
| ISO 900:1977 | Aluminium oxide primarily used for the production of aluminium — Determination of titanium content — Diantipyrylmethane photometric method |
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